Stent wall structure



FIG. 1 is a side elevational view of a stent wall structure in accordance with a first embodiment of our new design; and,

FIG. 2 is a side elevational view of a stent wall structure in accordance with a second embodiment of our new design.

The stent wall structures illustrated herein are portions of tubular members that are expandable. The inside surfaces of the stent wall structures do not form part of the claimed design. 

The ornamental design for a stent wall structure, as shown and described. 